内容正文:
Safe and sound
Unit 8
Grammar & Word power
Learning Objectives
By the end of the class, students will be able to:
1. understand the usage and formation of the past continuous tense;
2. create compound words based on given word - forming rules;
3. improve students’ ability to observe and describe things happening in
real life by using past continuous tense and word formation.
Watch a video
Do you think following the traffic rules is important?
Read the conversation below and pay attention to the use
of the past continuous tense.
Suzy: There was an accident near our school at 4:10 yesterday afternoon. It happened as we were going home from school. Amy: I know. I saw it while I was riding my bike home. It was raining when the police arrived.
Suzy: I didn’t see it. I hope no one was badly hurt.
Think:When did the accident happen?
When did they go home from school?
What can you find?
What tense are they?
They’re the past continuous tense.
They were happening at a particular time in the past.
4
We use the past continuous tense to talk about things that were happening at a particular time in the past.
We form the past continuous tense like this: __________ + v-ing.
was/were
5
When, while and as can be used as conjunctions of time. They all mean“during the time that...”.
I was working when the earthquake started.
People were running in all directions while pieces of glass and bricks were raining down.
As I was trying to find my way out, I suddenly heard some noise above me.
What do they mean?
6
When a shorter action happened at the same time as a longer action, we use the past continuous tense for the longer action and the simple past tense for the shorter action. When there are two long actions, we often use while.
We were watching in fear while the firemen were putting out the fire.
two long actions
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Millie was watching TV when lightning hit a nearby building.
If the shorter action is in the main clause, we can use
when, while or as to join the clauses.
When/While/As Millie was watching TV, lightning hit a nearby building.
If the longer action is in the main clause, we often use when to join the clauses.
shorter action
longer action
8
Simon: Hello, Grandpa. How was your day?
Grandpa: Not bad. Thank you, Simon. We just had the
third snowstorm of this winter. It (1) __________ (get) stronger while I (2) _____________ (read) the newspaper at about 7 this morning. What about you, Simon?
Simon: We’re all very well, Grandpa. It (3) ___________(snow) here
in Beijing when we went to the palace museum during the day.
Another snowstorm hit Harbin. Simon is asking his
grandpa about it. Complete their conversation with the correct forms of the verbs in brackets.
A
was getting
was reading
was snowing
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Grandpa: Sounds nice. Maybe I (5) ______
________ (watch) the wonderful view on TV while you (6) ____________ (visit) there.
Simon: Yeah, it was really wonderful. Come and take a look by yourself next time.
Lots of people (4) ____________ (enjoy) the beauty of the
Palace Museum in the snow.
were enjoying
was
was visiting
watching
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Joy after the snowstorm
Harbin woke up to a winter wonderland last week. There was a big snowstorm.
When I got up on Saturday morning, it (1) ____________ (snow) heavily. The wind (2) _____________ (blow) hard all morning, but that just meant more time for fun inside with my family.
It stopped snowing in the afternoon. Guess what I did? I built a snowman! I (3) ______ (draw) a big smile on his face, put a hat
Simon’s cousin Vicky is writing about the snowstorm. Complete her article with the correct forms of the verbs in brackets.
B
was snowing
was blowing
drew
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on his head and took a photo. When it was almost time for dinner, I went home. Some people in the neighbourhood (4) _____________ (clear) the snow from the streets.
When I got home, my parents (5) ___________ (get) dinner ready. While we (6) ______________ (enjoy) our meal, it began to snow again. It was so nice to have hot jiaozi on a cold day!
Simon’s cousin Vicky is writing about the snowstorm. Complete her article with the correct forms of the verbs in brackets.
B
were clearing
were getting
were enjoying
We can put two words together to create a new word. It is called compound word. We can make compound nouns in a number of ways.
noun + noun → thunderstorm, teamwork, snowball
noun + verb → raindrop, waterfall, sunrise
verb + noun → passport, playground, driveway
adjective + noun → whiteboard, software, gentleman
TIP
Sometimes we need to add a hyphen (-):
north + east → north-east
must + see → must-see
Look at the following words and find out how they
form new words. Write the correct words in the blanks.
A
police
woman
policeman
ache
tooth
head
man
policewoman
headache
toothache
Look at the following words and find out how they
form new words. Write the correct words in the blanks.
A
post
postman
postcard
pass
air
airport
passport
man
card
port
Mum and Dad went to visit my grandparents in the (1) ___________, so I was home alone last (2) ________. While I was making a pancake for myself, a (3) ________ came and gave me my new art books. I bought them online two days ago. Suddenly, I smelt
(4) _________ burning. Oh! It was my breakfast! That was close—I nearly started a fire! Next time I should be more careful!
Sandy wrote about an emergency last weekend. Try to
make compound words with the words in the box. Then complete Sandy’s article with the compound words you make.
country end man post side some week thing
B
countryside
weekend
postman
something
Write about an emergency or a natural disaster, using compound words.
C
Check your presentation
Present your poster to the class.
language correct form(形式正确)
accurate meaning(意义精确)
proper use(使用恰当)
poster design creativity(创意)
performance confidence(自信)
OK Good Excellent
表演过后让学生进行投票
Safety first , drive smart!
1. We use the past continuous tense to talk about things that were happening at a particular time in the past.
past continuous tense 用于描述过去某个特定时间正在发生的动作, 结构为 “was/were + 动词的现在分词(v-ing)”
I was doing my homework at 8 o’clock last night.
昨晚 8 点我正在做作业。
2. There was an accident near our school at 4:10 yesterday afternoon.
accident 名词,意为 “事故; 意外”
A car accident happened on this road last week.
上周这条路上发生了一起车祸。
3. I saw it while I was riding my bike home.
while 连词, 引导时间状语从句, 强调主句和从句的动作同时发生, 从句谓语动词常用延续性动词。
While my mother was cooking, I was reading a book.
妈妈做饭的时候,我正在看书。
4. It happened as we were going home from school.
as: 连词, 引导时间状语从句, 可表示两个动作同时进行, 常译为 “一边…… 一边……” 或 “当…… 时候”。
As she was walking, she was singing.
她一边走一边唱歌。
5. I was working when the earthquake started.
when: 连词, 引导时间状语从句, 既可以指时间点, 也可以指时间段, 从句谓语动词可以是短暂性动词, 也可以是延续性动词。
When I got home, my father was watching TV.
我到家时,爸爸正在看电视。
6. Another snowstorm hit Harbin.
snowstorm: 名词, 意为 “暴风雪”
A big snowstorm stopped people from going out.
一场大暴风雪使人们无法外出。
7. We can put two words together to create new words. They are called compound words.
compound words: 名词短语,意为 “合成词”,指由两个或多个单词组合而成的新单词
“Raincoat” is a compound word.
“Raincoat”(雨衣)是一个合成词。
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1. When I ____________ (walk) in the street, I met my old friend.
2. They _______________ (watch) TV at 8:00 last night.
3. As the boys _____________ (play) football, it began to rain.
4. While my mother ____________ (cook), my father was reading a newspaper.
5. I __________ (do) my homework when the light went out.
一、用所给动词的正确形式填空。
was walking
were watching
were playing
was cooking
was doing
1. 当我看见他的时候,他正在等公交车。
He ______ ______ for the bus when I saw him.
2. 昨天下午这个时候,我们正在上英语课。
We ______ ______ an English class at this time yesterday
afternoon.
3. 当暴风雨来的时候,她正在睡觉。
She _______ _______ when the rainstorm came.
4. 他们在踢足球的时候,我在跑步。
While they ______ ______ football, I was running.
5. 我正在写信时,妈妈走进了房间。
I ______ ______ a letter when my mother came into the room.
二、根据汉语提示完成句子。
was waiting
were having
was sleeping
were playing
was writing
1. snow + ball
2. police + man
3. post + card
4. sun + rise
5. play + ground
三、将下列单词组合成合成词,并写出其汉语意思。
snowball(雪球)
policeman(男警察)
postcard(明信片)
sunrise(日出)
playground(操场)
Combine words to form compound nouns.
Basic homework
Practical homework
Practice using the past continuous tense in dialogues.
Describe a disaster with past continuous tense and compound words.
Extended homework
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